Threshing-machine.



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H. ALBHRSWERTH. T HRBSHING MACHINE'. PPLIUATION FILED DBO. 28, 1905.

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No. 837,909. PATENTBD DBG. 11. 190e'.

H. ALBERSWBPUI'H.

lTHRESHING- MACHINE. APPLICATION FILED DEO. 28. 1905.

Ythe bars of the grate 6. y is shown clearly in Fig.

UNITED sTATEs PATENT oEEioE.

HALF TO HENRY ALBERSWERTH,

JR.. OF NEW HAVEN, MISSOURI.

THRESHlNG-MAGHINE.

Specification of Letters Yatent.

Patented Dec. 11, 1906.

Application filed December 28, 1905. Serial No. 293,674.

To a/ZZ whom it may concern.-

Be it known that I, HENRY ALBERswEETH, a citizen of the United States,residing at New Haven, Missouri, have invented a certain new and usefulImprovement in Threshing-Machines, of which the following is a full,clear, and exact description, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accom anying drawings, forming part of this s eci cation, inwhich- Figure 1 is a 'side e evation of a threshingmachine embodying thefeatures of my invention. Fig. 2 is a longitudinal sectional view of themachine shown in Fig. 1. Fig. 3 is a transverse sectional view on theline 3 3 of Fig. 2. Fig. 4 is a transverse sectional view on theline 4 4of Fig. 2, and Fig. 5 is a detail pers ective yiew of rone of theendless belts.

T 's invention relates to threshing-ma, chines; and one object of theinvention is to provide an improved mechanism for feeding the strawthrough the machine and beating it thoroughly to separate all the graintherefrom.

Another object of the invention is to provide means for distributing thestraw uniformly upon each side of the medial line of the machine, sothat all portions of the beating and feeding mechanism will be utilized.

Other advantages of my invention will hereinafter be pointed out.

Referring to the drawings, which represent the preferred form of myinvention, 1 designates the frame or casing, comprising side walls and atop, and 2 designates the feedchute at the front end of the machine.Mounted on a shaft 3 adjacent to the feedchute is a thres 'ng-cylinder4, which first acts upon the sheaves of grain as they are introducedinto the machine and separates most of the grain from the straw, thegrain falling onto a tray 5, located under the threshing-cylinder. Saidcylinder rotates in the direction of the arrow in Fig. 2 and feeds thestraw over grate-bars 6 and into engagement with a winged beater 7, someof the grain and chaff falling through said 'grate onto the tray 5. Asecond grate 8, formed of a plurality of bars, is located under thewinged beater, and the bars of said grate are farther apart than Thewinged beater 4 and comprises a shaft 9, mounted in the sides of theframe and provided near its opposite ends with circular plates 10. Aspider l1 is secured to the shaft at approximately the center thereof,and wings comprising plates 12 are connected to said spider and to theend plates 10, said wing-plates being arranged at an angle to the shaft9, which forms the axis of the winged beater. The wing-plates diverge inopposite directions from the central spider 11, as shown in Fig. 4, andthe grate underneath said beater is provided with a plurality of ribs13,. which diverge in opposite directions from a central rib 14 inalinement with the spider on said shaft 9. rIhe purpose of constructingthe winged beater and the grate in this manner is to distribute thestraw uniformly on both sides ofthe medial line of the machine, so thatthe entire surface of the beater and grate are utilized,and accordinglyprevents the machinefrom becoming choked with a large mass of straw. Thewinged beater rotates in the direction of the arrow in Fig. 2 andcarries the straw into engagement with a feeding-cylinder 15, providedwith fingers 16,

, Which beat the straw and feed it onto an endl less belt, saidfeeding-cylinder carrying the straw over a semicircular grate 17 that isa continuation of the grate 8. Preferably a plate 18 is arranged abovethe winged beater, as shown in Fig. 2. The feeding-cylinder comprises ashaft 19, journaled in the sides of the frame and having secured theretonear its opposite ends circular end plates 20, in which a plurality ofshafts 21 are rotatably mounted, said shafts extending parallel to theshaft 19..

Rigidly connected to each of the shafts 21 are a number of fingers16which normally extend radially from the cylinderthrough a cage thatpartially surrounds said cylinder and which consists of bars 22, thatare connected at their opposite ends to cross-bars 24,

extending the full width of the casing of the machine and secured to theside walls of the casing. If the fingers projected radially from thecylinder at all times, they would roo draw some of the straw throughsaid cage after thestraw had been carried over the semicircular grate17, and to prevent this from occurring means is provided for withdrawingthe fingers from the straw and mov- 105 ing them inwardly toward theaxis of the cylinder after said fingers have passed over thesemicircular grate, this being accomplished by the following mechanism:

Rigidly connected to one end of each shaft i i o an upwardlyprojectingbelt ejecting the grain in the grate onto the tray 5.

is a block 25, having gear-teeth 26 and a head 27, provided with asurface which is concentric with a circular-shaped track 2S, that isconnected to one side of the casing, a rack-bar 29 being also secured tothe side of the casing in alinement with the track, as

. shown in Fig. 2.

In operation the circular face on the head of each block normallyengages the track 28, so that the iingers on the shaft to which saidblock is connected will be held in a radial position to beat the strawand feed it over the semicircular grate 17, any grain or chaff whichremains in said straw falling through Th e rotative movement of thecylinder causes the end X of the head on said block to come intoengagement with a stop or projection 30 on the rack-bar 29, whereby theshaft to which said block is connected will be rocked in the reversedirection to that in which the cylinder is rotating and accordinglywithdraw the Ylinger from the Straw and move it from its radialposition. The continued rotative movement of the cylinder causes thegear-teeth on said block to engage the teeth of the rack-bar 29, so thatthe shaft and fingers are rotated further in this direction until theyhave made approximately one-half of a revolution. When the circular faceon thel end 1/ of the head of said block comes into engagement with theend w of the track 28,'further rotative movement is imparted to saidshaft and its lingers until the iingers assume a radial position, inwhich position they remain until after they have again passed thesemicircular grate. As previously stated, the fingers of the cylinderfeed the straw onto an endless belt 31, comprising bars 32, which areconnected at their opposite ends to lateral extensions onsprocket-chains 33, every third bar having tooth 34, which teethcoperate with each other to form pockets. In order that any grain whichremains in the straw will be the endless belt 31 is agitatedintermittently, so that the grain will fall into the pockets formed bythe teeth 34, this being effected by driving the sprocket-chains witheccentric sprockets 35 and 36, as shown in F ig. 2, so that the entirebelt will be intermittently raised and lowered, the movement of the thepockets onto a -sieve at the inner end of the tray 5 and the straw ontoa rotating beater 37, which pitches it onto a second endless belt 3S,similar in construction and operation to the belt 31, just described,the grain which accumulates in the pockets of said belt being ejectedonto a movable inclined table 39 and the straw being ejected through thedischargeopening 40 at the rear end of the machine, the table 39 beingcarried by links 41, connected to the sides of the frame.

Fromthe foregoing description it will be shaken therefrom, l

l understood that the sheaves are fed into the chute 2 and are thenacted upon by the threshing-cylinder, winged beater, feedingcylinder,endless belts, and beater 37, which cause the grain to be separated fromthe straw and fall onto the tray 5 and sieve and also on the inclinedtable 39. At the inner end of the tray 5 is a coarse sieve 42,previously referred to, and below this sieve is a second sieve 43, offiner mesh, so that the I heavy tailings, pieces of straw, &c., willremain on the sieve 42 and the grain and light chafl will sift throughonto the sieve 43, the grain passing through this sieve onto theinclined floor 44 of a movable box-like receptacle 45 and then into aspiral conveyer 45, l which carries the grain into a suitable receptacleplaced at the side ofthe machine and at the end of the conveyer.

As shown in F ig. 2, the tray 5 inclines downwardly toward the rear endof the machine and is supported by links 46, connected to the tray andto the sides of the frame of the machine, said tray being agitated tocause the grain and chaff thereon to travel to the sieve 42 at the inneror lower end of the tray. Delector-plates 47 are connected to the sidesof the frame above the side bars 48 of the tray, so that none of thegrain will be wasted. The box-like receptacle which carries the sieve isprovided with spaced lugs 49, which support the sieve 43, and thusenables its position relatively to the one above it to be changed. Thisreceptacle is also adapted to be agitated and is carried by links 50,which are pivoted to the sides of the frame.

' The tray 5 and receptacle 45 are agitated by means of eccentrics 51 ona shaft 52, through eccentric-rods 53, connecte respectively, to thetray and to the receptacle, the inclined table 39 being connected to thereceptacle 45 by a link 54, so that it moves with it.

A fan 55, mounted in a casing 56, having deflectors 57, operates to blowany straw, chaff, or other substance which rests on the g sieves throughthe discharge-opening 40, and

any heavy tailings will fall through the opening 58 in the end of thebox-like receptacle into a spiral conveyer-59, that carries them out ofthe machine, so that they may be l worked over, if desired. .Fastened tothe upper edge of the casing 56 and to the end of the tray 5 is a pieceof flexible material 56, which prevents the blast of air from escapingbeneath said tray. c j

For driving the mechanism above described the shaft of thethreshing-cylinder f is provided with a pulley `not shown) whichreceives a belt that is driven from some source of power, and theopposite end of said shaft is provided with a pulley 60, which drives abelt 61, that passes over wheels 62 and 63 on the shaft 9 and tl 52. Theeccentric-shaft carries a sprocketwheel 64 (shown in dotted lines inFig. 1,)

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ie eccentric-shaft means 68. The shaft which carries the sprocket 36,.

that aids in dr.ving the endless belt 31, is provided with a sprocket69, which drives a chain 70, that passes over sprockets 71 and 72 on theshafts of the beater 37 and the l drive-s rocket for the endless belt38. The

for driving the fan and spiral conveyers is not shown, but may be ofconstruction.

Having thus described my l claim as new, and desire to secure by tersPatent, is-

1. In a threshing-machine, a grate, a feeding-cylinder mounted abovesaid grate and provided with fingers which normally project radiallytherefrom for engaging a mass of straw and moving it over said grate,and means for moving said fingers out of their radial position andwithin the periphery of the cylinder after they have passed said grate;substantially as described.

2. In a threshing-machineof the class described, a grate, a devicelocated above said grate and provided with fingers which normallyproject outwardly for engaging a mass of material and moving it oversaid grate, and means for moving said fingers within the periphery ofinvention, what Let- the cylinder after they have passed said grate 5substantially as described.

3. In a threshing-inachine, a semi ircular grate, a cylinder locatedabove said grate and provided with fingers which normally projectradially therefrom to engage a mass of straw and move it over saidgrate, a cage partially surrounding said cylinder and constructed topermit the fingers of the cylinder to project therethrough, and meansfor moving said fingers out of heir radial position after they havepassed the grate to withdraw said fingers from the straw and thereaftermoving said fingers through the interior of the cylinder and into aradial position before they reach the position for engaging the straw;substantially as described.

4. In a threshing-inachine, a grate, a feeding-cylinder comprising aplurality of rotatably-mounted shafts having fingers which normallyproject radially from the cylinder to engage straw and move it over thegrate, blocks carried by said shafts, and means cooperating with saidblocks for turning the shafts in a direction reverse to that in whichthe cylinder i rotating to withdraw the fingers from the straw afterthey have passed the grate andI thereafter move said fingers scribed.

any suitable l l l vinto a radial position; substantially as deing itover said grate, a cage partially surrounding said cylinder andconstructed to permit said fingers to project therethrough, a blocksecured to each shaft and provided with gear-teeth and with a head, astationary rack-bar provided with means that is engaged by the head onthe block during the rotation of the cylinder whereby the shaft isturned to move said fingers out of a radial position, the teeth on saidrack-bar and said head thereafter engaging to further rotate said shaftin a direction reverse to that in which the cylinder is rotating,l and astationary track for engaging the head of the block to still furtherrotate the shaft and cause the fingers to assume a radial position;

substantially as described.

6. In a threshing-machine, an approximately semicircular grate, acylinder located above said grate and provided with fingers whichproject therefrom to engage straw and move it over said grate, a cagepartially surrounding said cylinder and comprising bars spaced apart andconnected at their opposite ends to stationary cross-bars and means forturning said fingers through an arc of approximately one hundred andeighty degrees to withdraw them from the straw and again move theminto'a radial position; substantally as described.

7. 1n a threshing-machine, a casing, a threshing-cylinder mounted insaid casing, mechanism for feeding the straw through said casingcomprising an endless belt provided with pockets, means for agitatingsaid belt to cause any grain in the straw to drop 'into said pockets,and a feeding-cylinder arranged between the threshing-cylinder and theendless belt substantially as described.

8. In a threshing-machine, a casing, a threshing-cylinder mounted insaid casing, mechanism for feeding the straw through said casingcomprising an endless belt provided with pockets, a sprocket-chainforming a part of said belt, eccentric sprocket-wheels for driving saidchain whereby the belt is raised and lowered intermittently to agitatethe straw and cause any grain therein to drop into said pockets, and afeeding-cylinder arranged between the threshing-cylinder and the endlessbelt; substantially as described.

HENRY VALBERSWERTH.

Witnesses:

WELLS L. CHURCH, GEORGE BAiinwiiLL.

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